严重的低血压,但不是全身性炎症或内皮激活,预测在循环冲击中的脑病变
Duc Nam Nguyen1, Luc Huyghens2, Truc Mai Nguyen3
1Department of Critical Care Medicine, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, Brussels, Belgium.
Annals of intensive care
|March 6, 2026
概括
循环休克会导致脑病变,其特征是昏迷和妄想. 严重的低血压和神经炎症标志物,而不是系统性炎症,是重症患者脑病变的主要驱动因素.
科学领域:
- 关键护理医学 关键护理医学
- 神经学 神经学
- 科研重症监护室 (ICU) 科研重症监护室
背景情况:
- 脑病是循环休克的常见并发症,与患者的不良结果有关.
- 休克时脑病变的确切原因,包括系统性炎症,内皮细胞激活或大脑低 perfusion,仍然不清楚.
研究的目的:
- 在经历循环休克的患者中调查脑病变的主要驱动因素.
- 区分神经炎症,内皮激活和严重低血压在脑病变的发展中的作用.
主要方法:
- 对198名患有循环休克 (败血和非败血) 的ICU患者的回顾性分析.
- 使用格拉斯哥昏迷量表,里士满兴奋镇静量表和ICU的混乱评估方法来评估脑病.
- 测量了神经炎症 (S100B),全身炎症 (CRP,MMP-9) 和内皮激活 (ICAM-1,VEGF). 严重的低血压被定义为平均动脉压 (MAP) <50 mmHg.
主要成果:
- 在71%的患者中发生脑病变,其中23%的患者经历昏迷和71%的 Delirium.
- 严重的低血压 (MAP <50 mmHg),长时间的镇静,ICU获得的感染和升高的S100B与脑病变有显著的关联.
- 系统性炎症标志物 (CRP,MMP-9) 和内皮激活标志物 (ICAM-1,VEGF) 与脑病变无关.
结论:
- 重复重度低血压 (MAP <50 mmHg) 和神经炎症标志物是循环休克中脑病变的最强预测因素.
- 系统性炎症和内皮激活似乎不是这种患者群体中脑病变的主要驱动因素.
相关概念视频
Blood Pressure Imbalances and Circulatory Shock
1.8K
Disorders affecting blood volume, vascular tone, or vascular function can disrupt vascular homeostasis, including conditions like hypertension, hemorrhage, and shock.
Blood Pressure: Hypertension and Hypotension
Normal blood pressure is 120/80 mm Hg. Elevated blood pressure is 120-129/under 80 mm Hg. Hypertension, warranting treatment at 130/80 mm Hg, is often asymptomatic and can lead to severe cardiovascular events, aneurysms, peripheral arterial disease, chronic renal disease, or cardiac...
Blood Pressure: Hypertension and Hypotension
Normal blood pressure is 120/80 mm Hg. Elevated blood pressure is 120-129/under 80 mm Hg. Hypertension, warranting treatment at 130/80 mm Hg, is often asymptomatic and can lead to severe cardiovascular events, aneurysms, peripheral arterial disease, chronic renal disease, or cardiac...
1.8K
Pulmonary Embolism I: Introduction
1.0K
Pulmonary embolism (PE) occurs when a thrombus, fat or air embolus, amniotic fluid, or tumor tissue blocks one or more pulmonary arteries. These blockages originate in the venous system or the right side of the heart.EtiologyPE primarily arises from deep vein thrombosis (DVT) and other hypercoagulable states, such as inherited thrombophilias. Additional etiological factors include venous stasis, commonly seen in obesity, and endothelial injury from surgery and trauma. Less common causes include...
1.0K
Alterations in Blood Pressure
2.3K
Alterations in blood pressure, such as hypertension (high blood pressure) and hypotension (low blood pressure), significantly affect human health. Understanding these conditions' classifications, causes, and symptoms is essential for effective management and treatment.
Hypertension (High blood pressure)
Hypertension occurs when blood pressure readings consistently exceed the normal range. It is diagnosed when systolic blood pressure (the top number, indicating pressure while the heart...
Hypertension (High blood pressure)
Hypertension occurs when blood pressure readings consistently exceed the normal range. It is diagnosed when systolic blood pressure (the top number, indicating pressure while the heart...
2.3K
Hypertension II: Pathophysiology
1.3K
Hypertension is a chronic condition in which the blood's force against artery walls is excessively high, posing risks such as heart disease. The condition's underlying mechanisms involve complex interactions among the cardiovascular, kidney, and autonomic nervous systems.Renin-Angiotensin-Aldosterone System (RAAS): This system significantly influences blood pressure regulation. When blood pressure decreases, the kidneys secrete renin. This enzyme transforms angiotensinogen, a plasma protein,...
1.3K
Hypertension III: Clinical Manifestations and Diagnostic Studies
689
Hypertension is asymptomatic and also referred to as the "silent killer" until it progresses to a severe stage or causes target organ disease. Patients may experience symptoms stemming from the strain on blood vessels and tissues in various organs or the heart's increased workload.Physical exams might show no abnormalities other than high blood pressure. Signs of vascular damage, when present, correspond to the organs supplied by the affected vessels, leading to target organ damage. For...
689


